What is the primary purpose of a sheet mask?

The primary purpose of a sheet mask is to deliver a concentrated dose of moisture and nutrients directly to the skin. Sheet masks are typically made from materials like cotton or hydrogel that are saturated with a serum containing various beneficial ingredients. These ingredients can include hyaluronic acid, vitamins, and antioxidants, designed to hydrate, nourish, and improve the overall appearance of the skin.

When applied to the face, the sheet conforms to the skin's contours, allowing the serum to penetrate effectively and minimizing evaporation of the product. This targeted delivery system makes sheet masks particularly effective for providing a quick boost of hydration and targeted treatment for specific skin concerns, such as dryness or dullness.

The other options, while they may represent benefits of other skin care products or techniques, do not encapsulate the primary function of sheet masks. For example, while some masks may have exfoliating properties, or might create a protective barrier, those are not the central focus of sheet masks specifically. Similarly, while enhanced glow can be a result of increased hydration and nutrition, it is an indirect outcome rather than the primary purpose of their use.